Every 7th year is a sabbatical year in which the land shall not be worked called the Shemitah. Major disaster events in world history fall on the sabbatical year of the Shemitah as a sign of judgement.
From the Creation of Israel and the balfour declaration 1917 to the Israel 6 day war and the restoration of Jerusalem 1967 marks the 49 - 50th jubilee year the 7th Shemitah. This pattern follows to a predicted event in the land of Israel and the nations on the 50th jubilee year on the year 2015, 2016.